EP 4068478 A1 20221005 - SEALING PLATE EQUIPPED WITH GAS DISCHARGE VALVE AND SECONDARY BATTERY USING THE SAME
Title (en)
SEALING PLATE EQUIPPED WITH GAS DISCHARGE VALVE AND SECONDARY BATTERY USING THE SAME
Title (de)
DICHTPLATTE MIT GASAUSLASSVENTIL UND SEKUNDÄRBATTERIE DAMIT
Title (fr)
PLAQUE D'ÉTANCHÉITÉ ÉQUIPÉE D'UNE SOUPAPE DE DÉCHARGE DE GAZ ET BATTERIE SECONDAIRE L'UTILISANT
Publication
Application
Priority
JP 2021060890 A 20210331
Abstract (en)
According to the present disclosure, there is provided a sealing plate equipped with a gas discharge valve that reduces processing load and work hardening during molding. A gas discharge valve of a sealing plate disclosed herein has a flat plate-shaped base portion and a protruding portion protruding from a first surface of the base portion in a first direction, an annular thin-walled portion having a thickness smaller than the thickness of the protruding portion is provided around the protruding portion, and a first surface of the thin-walled portion is substantially on the same surface as the first surface of the base portion. In the gas discharge valve having the above configuration, the total amount of metal that is plastically deformed is reduced by limiting the formation region of the thin-walled portion to the periphery of the protruding portion.
IPC 8 full level
H01M 50/15 (2021.01); H01M 50/342 (2021.01)
CPC (source: CN EP US)
H01M 10/0525 (2013.01 - CN); H01M 50/15 (2021.01 - EP); H01M 50/184 (2021.01 - CN); H01M 50/30 (2021.01 - CN); H01M 50/342 (2021.01 - EP); H01M 50/3425 (2021.01 - EP US); H01M 50/103 (2021.01 - EP); H01M 2200/20 (2013.01 - US); Y02E 60/10 (2013.01 - EP)
Citation (applicant)
JP 2012252809 A 20121220 - HITACHI VEHICLE ENERGY LTD
Citation (search report)
- [XI] JP 2000021380 A 20000121 - MITSUBISHI CABLE IND LTD
- [XI] JP 2006236949 A 20060907 - KAGA INC
- [XI] JP 2012182008 A 20120920 - PRIMEARTH EV ENERGY CO LTD
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
EP 4068478 A1 20221005; CN 115149167 A 20221004; CN 115149167 B 20240618; JP 2022156945 A 20221014; JP 7325474 B2 20230814; US 2022320675 A1 20221006
DOCDB simple family (application)
EP 22161533 A 20220311; CN 202210327067 A 20220330; JP 2021060890 A 20210331; US 202217703990 A 20220325